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Troubleshooting
Others
Sound
Remote Commander/Presentation tool
Others
Symptom Cause and Remedy
No sound. • A cable is disconnected or the connections are wrong.
c Check that the proper connections have been made (see
page 13).
• The audio connecting cable used is incorrect.
c Use a no-resistance stereo audio cable (see page 13).
• The sound is muted.
c Press the AUDIO MUTING key to release audio muting (see
page 9).
• The sound is not adjusted properly.
c Adjust the sound with the VOLUME +/– key on the Remote
Commander or adjust “Volume” on the PICTURE SETTING
menu (see page 26).
Symptom Cause and Remedy
The Remote Commander
does not work.
• The Remote Commander batteries are dead.
c Replace them with new batteries (see page 10).
• The COMMAND ON/OFF switch is set to OFF.
c Set it to ON.
• The PJ NETWORK selector switch is set to NETWORK.
c Set it to PJ.
The computer cannot be
controlled with the Remote
Commander.
• The USB cable is not connected.
c Connect the projector to the computer using the USB cable.
• You are operating the Air Shot (VPL-CX76 only).
c When using the Air Shot, the computer cannot be controlled
with the Remote Commander.
Use the presentation tool.
The computer cannot be
controlled with the
presentation tool (VPL-
CX76 only).
• The USB cable is being used.
• The Air Shot is not being used.
c The presentation tool is designed to be used with the Air Shot.
Use the Remote Commander to operate the device connected
via the USB cable.
Symptom Cause and Remedy
The control panel keys do
not function.
The control panel keys are locked.
c Unlock the control panel keys (see page 30).